From 78ee4193b70329c8e0929efd18c22324dd2ad8e0 Mon Sep 17 00:00:00 2001
From: Tim Almdal <tnalmdal@shaw.ca>
Date: Fri, 16 Oct 2009 10:06:58 -0700
Subject: Remove all non Identity API methods from Identity.php.  Created an
 MY_Session class to provide the user state changes in the session and a
 login.php helper that has the login form.

---
 modules/gallery/libraries/MY_Session.php | 84 ++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 modules/gallery/libraries/MY_Session.php

(limited to 'modules/gallery/libraries/MY_Session.php')

diff --git a/modules/gallery/libraries/MY_Session.php b/modules/gallery/libraries/MY_Session.php
new file mode 100644
index 00000000..6394c0fb
--- /dev/null
+++ b/modules/gallery/libraries/MY_Session.php
@@ -0,0 +1,84 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2009 Bharat Mediratta
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+class Session extends Session_Core {
+  /**
+   * Make sure that we have a session and group_ids cached in the session.
+   */
+  static function load_user() {
+    $session = Session::instance();
+    if (!($user = $session->get("user"))) {
+      $session->set("user", $user = Identity::guest());
+    }
+
+    // The installer cannot set a user into the session, so it just sets an id which we should
+    // upconvert into a user.
+    // @todo set the user name into the session instead of 2 and then use it to get the user object
+    if ($user === 2) {
+      $user = Instance::lookup_user_by_name("admin");
+      self::set_active_user($user);
+      $session->set("user", $user);
+    }
+
+    if (!$session->get("group_ids")) {
+      $ids = array();
+      foreach ($user->groups as $group) {
+        $ids[] = $group->id;
+      }
+      $session->set("group_ids", $ids);
+    }
+  }
+
+  /**
+   * Return the array of group ids this user belongs to
+   *
+   * @return array
+   */
+  static function group_ids_for_active_user() {
+    return self::instance()->get("group_ids", array(1));
+  }
+
+  /**
+   * Return the active user.  If there's no active user, return the guest user.
+   *
+   * @return User_Definition
+   */
+  static function active_user() {
+    // @todo (maybe) cache this object so we're not always doing session lookups.
+    $user = self::instance()->get("user", null);
+    if (!isset($user)) {
+      // Don't do this as a fallback in the Session::get() call because it can trigger unnecessary
+      // work.
+      $user = Identity::guest();
+    }
+    return $user;
+  }
+
+  /**
+   * Change the active user.
+   * @param User_Definition $user
+   */
+  static function set_active_user($user) {
+    $session = Session::instance();
+    $session->set("user", $user);
+    $session->delete("group_ids");
+    self::load_user();
+  }
+}
\ No newline at end of file
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